I also saw a case last week where the induction variable is <= imax(thing, 4) and it'd be nice to unroll those too.
--Jason On Mon, Nov 19, 2018 at 12:18 AM Timothy Arceri <tarc...@itsqueeze.com> wrote: > This series add support for partial loop unrolling for loops with an > unknown trip count. The new partial_unroll function allows the caller > to specifiy how may times the loop should be unrolled and then the > loop is inserted in the innermost continue branch of the unrolled loop. > > For now we only do partial unrolling for loops where we can guess the > iteration count based on array access that uses an induction variable > as its index (see patch 7). > > Patches 1-6 are tidy-ups/refactors. > > Patch 7 adds a method for guessing the trip count for the loop. > > Patch 8 adds partial unrolling support and also support for removing > redundant load/stores from the remaining loop when considering if > we would be accessing an array out bounds. > > > _______________________________________________ > mesa-dev mailing list > mesa-dev@lists.freedesktop.org > https://lists.freedesktop.org/mailman/listinfo/mesa-dev >
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